What Cracked the Earth’s Outer Shell and Started its Plate Tectonics?
Earth’s lithosphere is made up of seven large tectonic plates and a number of smaller ones. The theory of plate tectonics that describes how these plates move is about 50 years old. But there’s never really been an understanding of how this system developed, and how the Earth’s shell split into separate plates and started …
Continue reading “What Cracked the Earth’s Outer Shell and Started its Plate Tectonics?”
The post What Cracked the Earth’s Outer Shell and Started its Plate Tectonics? appeared first on Universe Today.
Universe Today
Go to Source
